United Electric 120 Temperature Switch - 2 SPDT Switch Output. Adjustable Setpoint Range: 100° to 400° F. Max Temp: 450° F, Scale Div: 5°. Bulb (OD x Length): 3/8" x 2-1/8". 304 Stainless Steel Bulb and 6-Foot Capillary, External Adjustment with Reference Dial, Single Conduit. Epoxy-Coated Diecast Aluminum NEMA 4X Enclosure for Class I, Div 1 and Class II, Div 1 Use. Model formerly designated with factory stock number E122-3BS (9180)